QUESTION
How to add the server assembly to the GAC without the .net Framework Configuration Tool.
ANSWER
To avoid installing the .net SDK which includes this tool. Simply place the dotnetcharting.dll file into the c:\[Windows]\assembly folder. IIS may have to be restarted to update. To restart IIS, right-click my computer and select Manage. Right click on Services and Applications > Internet Information Services and select All Tasks > Restart IIS.
If you're having difficulty performing the above, try using the command line tool 'cmd' to move the file to the assembly folder.